Added simple test for slicing by headers

test_tablib.py

@@ -26,7 +26,9 @@ class TablibTestCase(unittest.TestCase):
 		new_row = (1, 2, 3)
 		data.append(new_row)
 
+		# Verify width/data
 		self.assertTrue(data.width == len(new_row))
+		self.assertTrue(data[0] == new_row)
 
 	def test_empty_append_with_headers(self):
 		"""Verify append() correctly detects mismatch of number of
@@ -39,6 +41,23 @@ class TablibTestCase(unittest.TestCase):
 
 		self.assertRaises(tablib.InvalidDimensions, data.append, new_row)
 
+	def test_header_slicing(self):
+		"""Verify slicing by headers"""
+
+		headers = ('first_name', 'last_name', 'gpa')
+
+		data = [
+			('John', 'Adams', 90),
+			('George', 'Washington', 67)
+		]
+
+		data = tablib.Dataset(*data, headers=headers)
+
+		# Slice by headers
+		self.assertEqual(data['first_name'], ['John', 'George'])
+		self.assertEqual(data['last_name'], ['Adams', 'Washington'])
+		self.assertEqual(data['gpa'], [90, 67])
+
 	# def test_adding_header with (self):